Click on Orders from the menu on the left hand side of the screen.
Now click on Manage Orders.
It will now display all of your orders. Find all of the orders that you want to print the invoices for and click the tick-box next to each order. And then click the print icon.
A new window will open and it will display all of the invoices. You now have to press the Print button at the top left of the window.
You now just have to make sure the configurations are correct for your printer and then press Print again.
Congratulations you have successfully printed a invoice.